Age-related maculopathy is the leading cause of vision loss among adults in developed countries, and its prevalence is expected to double over the next decade. The two forms of age-related maculopathy--exudative and nonexudative--are capable of affecting the macula, with potential symptoms including decreased contrast sensitivity, decreased visual…

Purpose: The main purpose of this study was to examine how children with isolated speech sound disorders (SSDs; n = 20), children with combined SSDs and language impairment (LI; n = 20), and typically developing children (n = 20), ages 3;3 (years;months) to 6;6, differ in narrative ability. The second purpose was to determine if early narrative…

This research brief examines high school students' coursetaking in STEM (science, technology, engineering, and mathematics) subjects. As technical and scientific innovation increasingly drives the global economy, educators and experts in technical fields have expressed concern about the academic preparation of U.S. students in STEM fields. Using…

Tests for mean differences on latent constructs using the LISREL approach to multigroup structural-equation modeling were demonstrated for High School and Beyond data concerning the sophomore cohort. Senior year achievement test scores for 3,700 public and 300 Catholic school students were compared after controlling for background and sophomore…